WAC 246-272C-0010. Applicability and relationship to other rules

(1) This chapter applies to all prefabricated tanks and all cast-in-place tanks. This chapter establishes sewage tank design and construction requirements, plan review and approval requirements, and prefabricated tank registration requirements. (2) This chapter contains specific requirements for: (a) Manufacturers of prefabricated tanks and builders of cast-in-place tanks; (b) Persons designing sewage tanks; (c) The department for reviewing, registering, and approving sewage tank design and construction plans; (d) Persons installing sewage tanks; and (e) The local health officer and the department for approving on-site sewage system designs, plans, specifications, and installations under chapters 246-272A and 246-272B WAC. (3) This chapter does not contain all requirements for on-site sewage systems. Additional requirements for on-site sewage systems, including maintenance requirements, are found in chapters 246-272A and 246-272B WAC. (4) This chapter does not apply to: (a) Facilities regulated by the department of ecology; (b) Reclaimed water systems as described in chapter 90.46 RCW; (c) Tanks used to store municipal sewage sludge regulated as biosolids under chapter 173-308 WAC; or (d) Geomembrane containment vessels for public domain treatment technologies. An example of this excluded technology is PVC containment vessels for public domain packed bed filters.